Marine engine locking bar



FIG. 1 is a top, side perspective view of a marine engine locking barshowing my new design;

FIG. 2 is a bottom perspective view thereof showing the side and endopposite to that shown in FIG. 1; and

FIG. 3 is a top perspective view thereof showing the side and endopposite to that shown in FIG. 1.

The ornamental design for a marine engine locking bar, as shown.